"I get it," said Sally, grimacing. She took a cigarette from the box on the table, and fitted it into her holder. She glanced speculatively at Hannasyde, and took a lighter from her pocket. The little flame spurted up; she lit her cigarette, once more looked at Hannasyde, and then said tersely: "He's right, Helen. And what he says about having no interest in your affairs is true. He's got nothing on you, but obviously you've got to be eliminated."

Helen looked frightened, but after a pause said: "I did call on Ernie Fletcher last night. I've explained that he was a - a great friend, though years older than me. I looked on him as a sort of uncle."

"Quite," said Hannasyde. "Had you any particular purpose in paying this call?"

"No, not exactly. My sister was busy, and I was bored. It was quite early, and I thought I'd just look in on Ernie."

In spite of herself she coloured, but Hannasyde merely asked: "At what hour did you arrive at Greystones?"

"It must have been at about five-and-twenty to ten. I know I left this house at half-past nine."

"Just tell me everything that happened, Mrs. North."

"Really, there's so little to tell. I went by way of the Arden Road, because for one thing it's quicker than going all the way up this road, and along Vale Avenue, andd for another - I expect this seems odd to you, but it isn't really - I didn't much want to see Miss Fletcher, so I thought I'd go in by the garden-entrance, on the chance of finding Ern - Mr. Fletcher in his study." She broke off, and exclaimed wretchedly: "Oh, this is too impossible! It sounds as though I had some horrid assignation! But I hadn't, I hadn't!"

"Don't go over at the knees," recommended her sister. "It's obvious you hadn't, or you'd have thought up some convincing reason for calling on Ernie."

"Oh, don't! Do you suppose I can't see what a false impression anyone must get, not - not knowing the terms I was on with Ernie?"